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Al-doped ZnO thick films were prepared by sol-gel method, then which were annealed respectively at 500°C, 700°C and 900°C. The structure of these samples was studied by XRD and SEM. Moreover, the influence on gas sensing properties of the films, result from different Aluminum-doped concentration and different annealing temperature, were mainly researched. Results showed...
We synthesized undoped and Mn-doped ZnO films on glass substrates using the sol-gel technique. The micro-structure, morphology and optical properties of ZnO films were studied by using X-ray diffraction, Atomic Force Microscope and UV-visible transmission spectra. After annealed at a temperature lower than 550°C by Rapid Thermal Processing (RTP), all the ZnO films are polycrystalline with a hexagonal...
The optical properties of ZnO thin films grown by sol-gel method on quartz wafers were studied using photoluminescence measurements for optical properties. The structural properties of the ZnO thin films were carried out using X-ray method. The effects of the thickness variation and annealing temperature on the crystallinity parameters were observed. A strong dependence of the films structure, the...
In this study, we investigated the properties of ZnO nanostructures grown by a sol-gel method on glass substrates. First, the seed layer of ZnO were formed using zinc acetate dihydrate (Zn(CH3COOH)2??2H2O), 2-propanol (CH3CH2 CH2OH), and sodium hydroxide (NaOH) as precursor material, solvent and sol stabilizer, respectively. The three dimensional ZnO nanostructures were then grown by the CBD(Chemical...
This paper describes an application of quartz tuning forks (QTF) coated with nanocrystalline ZnO films used as relative humidity sensors. The nanocrystalline ZnO thin films were deposited on the QTF by sol-gel method. The film was characterized by X-Ray Diffraction (XRD) and Atomic Force Microscope (AFM) to obtain the information on the structural and morphological properties. And the humidity sensitivity...
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